Rent control rules in Pima County, AZ — also known as rent stabilization or rent cap ordinances — limit annual rent increases and protect tenants from displacement.
Arizona state law (ARS 33-1329, reinforced by SB 1350 in 2022) preempts all local rent control ordinances. Neither Pima County nor any municipality in Arizona may impose rent caps, rent stabilization, or rent increase limitations. Landlords may raise rent without limit upon proper notice at the end of a lease term.
ARS 33-1329 (originally enacted 1985, strengthened by SB 1350 signed in 2022) prohibits cities, towns, and counties in Arizona from enacting any ordinance that controls rents, imposes rent caps, or limits the amount by which a landlord may increase rent. This preemption is absolute -- there are no exceptions for affordable housing programs, emergency declarations, or specific property types. Pima County cannot adopt rent control even if the Board of Supervisors desired to do so. Under the Arizona Residential Landlord and Tenant Act (ARS 33-1301 et seq.), landlords must provide 30 days written notice before a rent increase takes effect for month-to-month tenancies. For fixed-term leases, rent cannot be increased during the lease term unless the lease specifically allows it. There is no maximum percentage increase under Arizona law. The Pima County Constables Office handles eviction proceedings (forcible detainer actions) in Justice Court.
Since rent control is preempted by state law, there are no local violations to enforce. Any local ordinance attempting to control rents would be void under ARS 33-1329. Landlords who fail to provide 30 days notice of a rent increase may face tenant claims under the Landlord and Tenant Act.
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See how Pima County's rent control rules stack up against other locations.
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